<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder=
        "输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li
          class="search-item border-bottom"
          v-for="item of list"
          :key="item.id"
          @click="handleCityClick(item.name)"
        >
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasList">
          没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>

</template>

<script>

    import Bscroll from 'better-scroll'
    export default {
      name: "citySearch",
      data(){
        return{
          keyword:'',
          list:[],
          tiemr : null
        }
      },
      props:{
        cities:Object
      },
      computed :{
        hasList(){
          return !this.list.length
        }
      },
      methods:{
        handleCityClick(city){
          this.$store.commit('changeCity',city);
          this.$router.push('/')
        }
      },
      watch:{
        keyword(){
          if(this.timer){
            clearTimeout(this.timer)
          }
          if(!this.keyword){
            this.list = [];
            return
          }
          this.timer = setTimeout(()=>{
            const result = [];
            for (let i in this.cities){
              this.cities[i].forEach((value)=>{
                if(value.spell.indexOf (this.keyword) >-1||
                value.name.indexOf(this.keyword) >-1){
                  result.push(value)
                }
              })
            }
            this.list = result
          },100)
        }
      },
      mounted(){
        this.scroll = new Bscroll(this.$refs.search)
      }
    }
</script>

<style lang="stylus" scoped>
  @import "~style/varibles.styl"
  .search
    height .72rem
    padding 0 .1rem
    background: $bgColor
    .search-input
      box-sizing : border-box
      width 100%
      height: .62rem
      line-height: .62rem
      text-align center
      border-radius .06rem
      color #666
      padding 0 .1rem
      font-size .24rem
  .search-content
    position: absolute
    overflow: hidden
    top:1.58rem
    left: 0
    right: 0
    bottom 0
    background: #f5f5f5
    z-index 1
    .search-item
      line-height:.62rem
      padding-left:.2rem
      background: #fff
      color #666
</style>
